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Processing & Handling

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Chementator: Using Living Plants to Synthesize Metallic Nanoparticles      

Metallic nanoparticles are usually produced by wet chemical methods, often using toxic and flammable substances, or by physical methods such as evaporation and laser ablation. A group from the Laboratory for Sustainable Technology, School of Chemical and Biomolecular Engineering, at…

Newsfront: Cleaning up with Catalysts  

As long as the chemical process industries (CPI) have existed, catalysts have been backstage supporting, if not leading, their progress. And, as much of the chemical industry’s current research efforts center around producing cleaner products, such as transportation fuels and…

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Avoiding Seal Failure

Seals are assemblies of elements that prevent the passage of a solid, liquid, gas or vapor from one system to another. When a seal allows leakage of material, failure has occurred. This guide provides an overview of common seal types…

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Feature Report: Advances in Valve Position Monitoring

Demanding application requirements coupled with improved downstream control devices and enhanced instrument diagnostics have led to major changes in process-valve monitoring and control. Factors driving these changes in the chemical process industries (CPI) include the need for lower plant operating…

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Chementator: A Rapid-Cycle PSA System Economically Recovers H2    

A pressure-swing-adsorption (PSA) system for hydrogen purification that operates at "tens of cycles per minute," versus one cycle every 4 – 10 min for conventional PSA, will have its first commercial-scale demonstration at an ExxonMobil refinery in France. Developed by…

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Chementator: New Pyrolysis Method Improves Carbon Black Recovery from Scrap Tires

The standard temperature range for waste-rubber pyrolysis has been reported as 480 – 1,740ºF. Within 480 – 750ºF, shredded tire scrap decomposes into increasing amounts of gases and oil; and above 750ºF, oil and solid char yields can decrease relative…

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Chementator: Beta-Glucan Separation  

The blood-cholesterol-lowering effects of beta-glucan — the soluble oat fiber — is well known, but up to now it has been difficult to obtain beta-glucan-rich fractions that are feasible for food applications, according to VTT Technical Research Center (Espoo, Finland,…

Pinch valve introduced to accommodate particulate flows

This week, Plast-O-Matic Valves, Inc. (Chem Show, New York; Booth 1018) debuts an all-thermoplastic, air-operated pinch valve with a newly designed sleeve element. With an open tubular-sleeve element to control flow, the Series HSA pinch valves provide an open flow…

Resodyn to Unveil ‘Entirely New’ Mixing Technology at Chem Show

The technology — now being demonstrated at the company’s booth with its lab-scale version (LabRAM) — generates acoustic waves via the resonant vibration of a simple, mechanically driven  agitator. At an 11:00 a.m. press conference today, Resodyn Acoustic Mixers Inc.…

Nanoholes improve the light absorption of TiO2

  The ability of titanium dioxide to absorb ultraviolet A (UVA) and ultraviolet B (UVB) solar radiation has been increased 25% by researchers at the U.S. Dept. of Energy’s Brookhaven National Laboratory (Upton, NY; edlinks.chemengonline.com/6900-534). This could lead to improved…